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https://github.com/webmproject/libwebp.git
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63aba3aef1
unused currently, but the intent is to allow each format to populate exif/xmp/icc with cwebp then transferring it to the webp file. Change-Id: I0514f62de52fa7f89c595ee7ef2ad7dced910a41
54 lines
1.3 KiB
C
54 lines
1.3 KiB
C
// Copyright 2012 Google Inc. All Rights Reserved.
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//
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// This code is licensed under the same terms as WebM:
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// Software License Agreement: http://www.webmproject.org/license/software/
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// Additional IP Rights Grant: http://www.webmproject.org/license/additional/
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// -----------------------------------------------------------------------------
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//
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// Metadata types and functions.
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//
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#ifndef WEBP_EXAMPLES_METADATA_H_
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#define WEBP_EXAMPLES_METADATA_H_
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#include "webp/types.h"
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#if defined(__cplusplus) || defined(c_plusplus)
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extern "C" {
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#endif
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typedef struct MetadataPayload {
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uint8_t* bytes;
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size_t size;
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} MetadataPayload;
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typedef struct Metadata {
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MetadataPayload exif;
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MetadataPayload iccp;
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MetadataPayload xmp;
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} Metadata;
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#define METADATA_OFFSET(x) offsetof(Metadata, x)
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static void MetadataInit(Metadata* const m) {
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memset(m, 0, sizeof(*m));
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}
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static void MetadataPayloadDelete(MetadataPayload* const payload) {
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free(payload->bytes);
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payload->bytes = NULL;
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payload->size = 0;
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}
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static void MetadataFree(Metadata* const m) {
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MetadataPayloadDelete(&m->exif);
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MetadataPayloadDelete(&m->iccp);
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MetadataPayloadDelete(&m->xmp);
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}
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#if defined(__cplusplus) || defined(c_plusplus)
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} // extern "C"
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#endif
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#endif // WEBP_EXAMPLES_METADATA_H_
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